While playing game, press Left, Down, Right, Up, L1 + R1, L1 + R1. You can now select your three digsites without the required stars.

Sequencing Error

While playing game, press Down, R1 + Up. This will set all excavated dinosaur DNA to 55%.

Mr. DNA

While playing game, press R1, Up, R1, Right, L1, Down. This will set all excavated dinosaur DNA to 100%.

Driveby

While playing game, press R1 + L1, Left, Down, Right(2). You can now shoot from the safari cars by using the camera.

Rampage Time

While playing game, press L1(3), Left(3). All carnivores will become stressed.

Crash!

While playing the game, hold L1 + R1 and repeatedly tap Up, Down, Up, Down. One of your safari cars will blow up. In the PAL version of the game, press R1, L1, Up, Down, Up, Down while playing the game.

Oh No!

While playing the game, hold R1 and press Right, Left, Right, Left, Right. All tourists will die. In the PAL version of the game, press Left, Right, Left, Right, R1 while playing the game.

Isla Muerta

While playing game, press R1(3), L1, Right. Dinosaurs will now appear to be the living dead.

While playing game, press R1(2), L1, R1, Down, Up, Down. The weather will get stormy.

No Twisters

While playing the game, hold L1 + R1 and press Left, Right. Release L1 + R1, then press L1 + R1 again. In the PAL version of the game, press Left, Right, L1, R1 while playing the game.

Dial-A-Twister

While playing game, press Left, Up, Right, Down, L1 + R1. A twister will appear on the island.

Extinction Event

While playing game, press L1, R1, Down, R1, L1. All dinosaurs will be killed.

No Red Tape

While playing game, press L1, R1, Left, Down(4).

Site B

Successfully complete all missions to unlock the Site B option at the main menu.

More visitors

If you want more people to visit your park, build four or five entrances on all different sides.

Avoiding visitor deaths

Never build a Safari Adventure in your T-Rex cage. The visitors inside of the car will not live too long. Also, never put more than one T-Rex in one cage. One will be killed and the other badly injured; and the visitors around the cage will get scared to death. This costs you a lot of money, for the T-Rexes and the fines.

Saving money

To save a little money, build a small enclosure around a hatchery. When you hatch a dinosaur, sedate it, and move it to its cage.